Rectangular filter sets - the ideal exposure at all times
What a rectangular filter is needed for
The rectangular filter is the variable and innovative further development of the classic screw filter, which is screwed into the front thread of a lens. Using a rectangular filter means that the photographer is not tied to a specific combination of lens and the filter that is exactly right for it. The filter holder, which securely fixes the rectangular filters in front of the front element of the lens used, is the key to the numerous possible uses. By means of adapter rings in all common thread sizes, the filter holder can be attached to practically any lens, regardless of whether it is a fixed focal length or a zoom lens of all focal lengths.
What is the function of the ND square filter?
The Neutral Density filter is the most widely used filter in modern photography. It is used when the photographer wants to influence the exposure time. Depending on the selected extension factor, the gray filter reduces the incident light.
Thanks to the numerous different filter permeabilities, the areas of application of the neutral density filter can hardly be limited. Square filters from the F:X Pro series are often used in wedding or portrait photography. In bright light, it is often not possible to work with the open aperture. This prevents the desired cropping effect or means that the photographer has to rely on extremely short exposure times or the electronic shutter. Especially when working with ambient light in combination with flash light, due to the limited flash sync speed, correct exposure is only possible thanks to the use of a square-wave ND filter.
The gray graduated filter represents a special feature in the repertoire of photographers. It has the same effect as a conventional filter for the neutral density, but only on a previously selected area of the image composition. The gray gradient filter is traditionally used in landscape photography. Despite the high exposure range of modern cameras and the digital post-processing of RAW files in the appropriate programs, there is a risk that the particularly bright areas will wear out or the detailed drawing in the shadows will not be sufficient due to the high contrast range between the dark foreground and the bright sky.
This shows another advantage of the rectangular filters made of Gorilla Glass, they can be rotated as desired due to the holder construction and can therefore be precisely adapted to the image composition. Regardless of whether it is horizontal, vertical or at any angle, the camera can remain on the tripod and the lighting situation can be adjusted with a flick of the wrist..
When is the polarizing filter used??
The pole or polarization filter fulfills a number of tasks. It is particularly popular in architectural and landscape photography. Its job is to prevent reflections. This filter makes it possible to make reflecting water surfaces transparent or to eliminate annoying glare effects caused by reflecting windows or other reflecting surfaces. In landscape photography, the polarizing filter also has the effect of reducing the natural haze in the sky, making colors more intense and slightly increasing the contrast.
The Gorilla Glass
All rectangular filters are made of robust Gorilla Glass. This is not only particularly impact-resistant and scratch-resistant, but also easy to clean. Fingerprints, dust and, above all, traces of cleaning on the filters are a thing of the past.
- practical sets with several extension factors
- easy installation thanks to holders and adapters
- Robust and scratch-resistant Gorilla Glass
- perfect for a variety of photographic applications
- Portable, lightweight and easy to store
- high quality optical glass
- Can be supplemented with additional filters without any problems
- ideal for long exposures
- more leeway in digital post-processing